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I created Azure CDN Verizon Premium.

Endpoint Hostname: https://mysitename.azureedge.net
Origin Hostname: https://mysitename.com
Origin host header: 123.456.789.12 ( My Server IP )
My Server is: CentOS + Litespeed
DNS Provider: Cloudflare

Normally, I point to my server from CF DNS

A - @ - 123.456.789.12
CNAME - www - mysitename.com

With these settings, I can access my site (NO proxied)

I wish to use Azure CDN for the root domain.

I don't like to use www.mysitename.com, But I like to use root/naked domain (mysitename.com)

So, I changed my DNS like this:

CNAME - @ - mysitename.azureedge.net
CNAME - www - mysitename.azureedge.net

Thanks to CNAME flattering in Cloudflare

(This technic worked with QUIC.Cloud CDN - when I used their NODE URL on CF DNS) NB: Quic.cloud is still in Beta - But a nice service - worth trying.

So, I used the same trick to have in Azure CDN (I don't know it'll work or not)

After I put the endpoint hostname in my browser, I get a 504 timeout error. As you know, Azure is NOT allowing an SSL certificate on the root domain.

So, how can I fix this trouble?

What do exactly I want

A dynamic CDN, Not the traditional URL mapping CDN.

Need to deliver the entire files & folder to edge locations (Verizon & Akamai Dynamic Delivery)

Why don't like to use URL mapping

The site on a root domain and CDN in a subdomain is possible.

Ex: site URL mysite.com & CDN URL: cdn.mysitename.com (currently I'm using this setup in few sites)

But, the real problem is:

the CDN URL will be quick, Files can be delivered. But, The Website root domain, still deliver from the origin server.

So, TTFB is delayed when users from India access the site hosted in the USA.

Did you find a solution?

Yes, Cloudflare & QUIC is the best solution for this, because they both work through DNS level.

Cloudflare asks us to point our domain to theirs NS and they deliver dynamically (if proxy is enabled)

Each country has better TTFB than, origin (I tested with CF)

But why am I not using Cloudflare?

Cloudflare has some SEO issues. I faced many times on many occasions. CF is fast but dropped my ranking suddenly.

Why I'm not using QUIC.Cloud?

I'm using Quic on some small sites. It works well.

QUIC works, by pointing CNAME to their NODE URL (Their DNS solution is on the way). The entire site will be delivered through its node.

But, It's still in beta and not capable to deliver my requirements always as I expected. Maybe they will fix small bugs asap.

Then, what do you want?

I need to deliver my entire site through CDN. so I can increase the TTFB in every location. CDN for the root domain is the solution (I think so)

CNAME to endpoint hostname will work?

is there I miss anything, in my DNS or Azure CDN setup?

James Z
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Sibi Paul
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1 Answers1

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You need to have your DNS managed in Azure, and then create an Alias record for the root domain, pointing to the CDN.

https://docs.microsoft.com/en-us/azure/dns/dns-alias

After that you will want the SSL certificate, it is allowed on root domain, but it's not managed by Azure and you need to upload it to the Key Vault and bind it through that.

https://docs.microsoft.com/en-us/azure/cdn/cdn-custom-ssl?tabs=option-2-enable-https-with-your-own-certificate

Erndob
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  • In this article https://docs.microsoft.com/en-us/azure/cdn/cdn-troubleshoot-allowed-ca they saying " The option of using your own certificate to enable the custom domain HTTPS feature is not available for Azure CDN Standard from Akamai profiles. " What if My CDN Profile is Akamai... So, How can I use CDN for my Root Domain? – Sibi Paul Sep 24 '20 at 12:46
  • I don't think you can do it with Akamai.The only thing that comes to mind is using a CDN that supports redirects for root domain, and then redirect to your subdomain that is on your main CDN. This way root domain will still be redirect at the edge and won't do the roundtrip to your server. – Erndob Sep 25 '20 at 03:51
  • Hi... I liked the Way How Cloudflare CDN works... and QUIC.cloud works... I think only that's the solution for deliver Root domain through CDN... – Sibi Paul Sep 26 '20 at 14:17
  • Do you know any Other companies who Offer such a CDN Solution just like Cloudflare and Quic.cloud Offers...?? I think, Akamai Direct will work like that... But I'm not sure, they not yet send me the trials credentials... I'm waiting... if you know some companies like Cloudflare and Quic cloud... let me know about it... thanks – Sibi Paul Sep 26 '20 at 14:18
  • @SibiPaul So what's wrong with using either Microsoft or Verizon on Azure CDN? My post describes how you can have root domain. It's just Akamai that does not support it. But if you are open to changing to another CDN, then just change from Akamai to the one azure supports? – Erndob Sep 28 '20 at 02:51